This release contains bug fixes since the 2.10.0 release.
We recommend that you upgrade at the next available opportunity.
**Bugfixes**
* #5159 Support Continuous Aggregates names in hypertable_(detailed_)size
* #5226 Fix concurrent locking with chunk_data_node table
* #5317 Fix some incorrect memory handling
* #5336 Use NameData and namestrcpy for names
* #5343 Set PortalContext when starting job
* #5360 Fix uninitialized bucket_info variable
* #5362 Make copy fetcher more async
* #5364 Fix num_chunks inconsistency in hypertables view
* #5367 Fix column name handling in old-style continuous aggregates
* #5378 Fix multinode DML HA performance regression
* #5384 Fix Hierarchical Continuous Aggregates chunk_interval_size
**Thanks**
* @justinozavala for reporting an issue with PL/Python procedures in the background worker
* @Medvecrab for discovering an issue with copying NameData when forming heap tuples.
* @pushpeepkmonroe for discovering an issue in upgrading old-style
continuous aggregates with renamed columns
* @pushpeepkmonroe for discovering an issue in upgrading old-style continuous aggregates with renamed columns
This release contains new features and bug fixes since the 2.9.3
release.
This release is high priority for upgrade. We strongly recommend that
you upgrade as soon as possible.
**Features**
* #5241 Allow RETURNING clause when inserting into compressed chunks
* #5245 Manage life-cycle of connections via memory contexts
* #5246 Make connection establishment interruptible
* #5253 Make data node command execution interruptible
* #5243 Enable real-time aggregation for continuous aggregates with
joins
* #5262 Extend enabling compression on a continuous aggregrate with
'compress_segmentby' and 'compress_orderby' parameters
**Bugfixes**
* #4926 Fix corruption when inserting into compressed chunks
* #5218 Add role-level security to job error log
* #5214 Fix use of prepared statement in async module
* #5290 Compression can't be enabled on continuous aggregates when
segmentby/orderby columns need quotation
* #5239 Fix next_start calculation for fixed schedules
This release contains bug fixes since the 2.9.2 release.
This release is high priority for upgrade. We strongly recommend that you
upgrade as soon as possible.
**Bugfixes**
* #4804 Skip bucketing when start or end of refresh job is null
* #5108 Fix column ordering in compressed table index not following the order of a multi-column segment by definition
* #5187 Don't enable clang-tidy by default
* #5255 Fix year not being considered as a multiple of day/month in hierarchical continuous aggregates
* #5259 Lock down search_path in SPI calls
This release contains bug fixes since the 2.9.1 release.
We recommend that you upgrade at the next available opportunity.
**Bugfixes**
* #5114 Fix issue with deleting data node and dropping the database on multi-node
* #5133 Fix creating a CAgg on a CAgg where the time column is in a different order of the original hypertable
* #5152 Fix adding column with NULL constraint to compressed hypertable
* #5170 Fix CAgg on CAgg variable bucket size validation
* #5180 Fix default data node availability status on multi-node
* #5181 Fix ChunkAppend and ConstraintAwareAppend with TidRangeScan child subplan
* #5193 Fix repartition behavior when attaching data node on multi-node
This release contains bug fixes since the 2.9.0 release.
This release is high priority for upgrade. We strongly recommend that you
upgrade as soon as possible.
**Bugfixes**
* #5072 Fix CAgg on CAgg bucket size validation
* #5101 Fix enabling compression on caggs with renamed columns
* #5106 Fix building against PG15 on Windows
* #5117 Fix postgres server restart on background worker exit
* #5121 Fix privileges for job_errors in update script
Add 2.9.0 to update test scripts and adjust downgrade scripts for
2.9.0. Additionally adjust CHANGELOG to sync with the actual release
CHANGELOG and add PG15 to CI.
This release adds major new features since the 2.8.1 release.
We deem it moderate priority for upgrading.
This release includes these noteworthy features:
* Hierarchical Continuous Aggregates (aka Continuous Aggregate on top of another Continuous Aggregate)
* Improve `time_bucket_gapfill` function allowing specifying timezone to bucket
* Use `alter_data_node()` to change the data node configuration. This function introduces the option to configure the availability of the data node.
This release also includes several bug fixes.
**Features**
* #4476 Batch rows on access node for distributed COPY
* #4567 Exponentially backoff when out of background workers
* #4650 Show warnings when not following best practices
* #4664 Introduce fixed schedules for background jobs
* #4668 Hierarchical Continuous Aggregates
* #4670 Add timezone support to time_bucket_gapfill
* #4678 Add interface for troubleshooting job failures
* #4718 Add ability to merge chunks while compressing
* #4786 Extend the now() optimization to also apply to CURRENT_TIMESTAMP
* #4820 Support parameterized data node scans in joins
* #4830 Add function to change configuration of a data nodes
* #4966 Handle DML activity when datanode is not available
* #4971 Add function to drop stale chunks on a datanode
**Bugfixes**
* #4663 Don't error when compression metadata is missing
* #4673 Fix now() constification for VIEWs
* #4681 Fix compression_chunk_size primary key
* #4696 Report warning when enabling compression on hypertable
* #4745 Fix FK constraint violation error while insert into hypertable which references partitioned table
* #4756 Improve compression job IO performance
* #4770 Continue compressing other chunks after an error
* #4794 Fix degraded performance seen on timescaledb_internal.hypertable_local_size() function
* #4807 Fix segmentation fault during INSERT into compressed hypertable
* #4822 Fix missing segmentby compression option in CAGGs
* #4823 Fix a crash that could occur when using nested user-defined functions with hypertables
* #4840 Fix performance regressions in the copy code
* #4860 Block multi-statement DDL command in one query
* #4898 Fix cagg migration failure when trying to resume
* #4904 Remove BitmapScan support in DecompressChunk
* #4906 Fix a performance regression in the query planner by speeding up frozen chunk state checks
* #4910 Fix a typo in process_compressed_data_out
* #4918 Cagg migration orphans cagg policy
* #4941 Restrict usage of the old format (pre 2.7) of continuous aggregates in PostgreSQL 15.
* #4955 Fix cagg migration for hypertables using timestamp without timezone
* #4968 Check for interrupts in gapfill main loop
* #4988 Fix cagg migration crash when refreshing the newly created cagg
**Thanks**
* @jflambert for reporting a crash with nested user-defined functions.
* @jvanns for reporting hypertable FK reference to vanilla PostgreSQL partitioned table doesn't seem to work
* @kou for fixing a typo in process_compressed_data_out
* @xvaara for helping reproduce a bug with bitmap scans in transparent decompression
* @byazici for reporting a problem with segmentby on compressed caggs
* @tobiasdirksen for requesting Continuous aggregate on top of another continuous aggregate
* @xima for reporting a bug in Cagg migration
This release is a patch release. We recommend that you upgrade at the
next available opportunity.
**Bugfixes**
* #4454 Keep locks after reading job status
* #4658 Fix error when querying a compressed hypertable with compress_segmentby on an enum column
* #4671 Fix a possible error while flushing the COPY data
* #4675 Fix bad TupleTableSlot drop
* #4676 Fix a deadlock when decompressing chunks and performing SELECTs
* #4685 Fix chunk exclusion for space partitions in SELECT FOR UPDATE queries
* #4694 Change parameter names of cagg_migrate procedure
* #4698 Do not use row-by-row fetcher for parameterized plans
* #4711 Remove support for procedures as custom checks
* #4712 Fix assertion failure in constify_now
* #4713 Fix Continuous Aggregate migration policies
* #4720 Fix chunk exclusion for prepared statements and dst changes
* #4726 Fix gapfill function signature
* #4737 Fix join on time column of compressed chunk
* #4738 Fix error when waiting for remote COPY to finish
* #4739 Fix continuous aggregate migrate check constraint
* #4760 Fix segfault when INNER JOINing hypertables
* #4767 Fix permission issues on index creation for CAggs
**Thanks**
* @boxhock and @cocowalla for reporting a segfault when JOINing hypertables
* @carobme for reporting constraint error during continuous aggregate migration
* @choisnetm, @dustinsorensen, @jayadevanm and @joeyberkovitz for reporting a problem with JOINs on compressed hypertables
* @daniel-k for reporting a background worker crash
* @justinpryzby for reporting an error when compressing very wide tables
* @maxtwardowski for reporting problems with chunk exclusion and space partitions
* @yuezhihan for reporting GROUP BY error when having compress_segmentby on an enum column
This release adds major new features since the 2.7.2 release.
We deem it moderate priority for upgrading.
This release includes these noteworthy features:
* time_bucket now supports bucketing by month, year and timezone
* Improve performance of bulk SELECT and COPY for distributed hypertables
* 1 step CAgg policy management
* Migrate Continuous Aggregates to the new format
**Features**
* #4188 Use COPY protocol in row-by-row fetcher
* #4307 Mark partialize_agg as parallel safe
* #4380 Enable chunk exclusion for space dimensions in UPDATE/DELETE
* #4384 Add schedule_interval to policies
* #4390 Faster lookup of chunks by point
* #4393 Support intervals with day component when constifying now()
* #4397 Support intervals with month component when constifying now()
* #4405 Support ON CONFLICT ON CONSTRAINT for hypertables
* #4412 Add telemetry about replication
* #4415 Drop remote data when detaching data node
* #4416 Handle TRUNCATE TABLE on chunks
* #4425 Add parameter check_config to alter_job
* #4430 Create index on Continuous Aggregates
* #4439 Allow ORDER BY on continuous aggregates
* #4443 Add stateful partition mappings
* #4484 Use non-blocking data node connections for COPY
* #4495 Support add_dimension() with existing data
* #4502 Add chunks to baserel cache on chunk exclusion
* #4545 Add hypertable distributed argument and defaults
* #4552 Migrate Continuous Aggregates to the new format
* #4556 Add runtime exclusion for hypertables
* #4561 Change get_git_commit to return full commit hash
* #4563 1 step CAgg policy management
* #4641 Allow bucketing by month, year, century in time_bucket and time_bucket_gapfill
* #4642 Add timezone support to time_bucket
**Bugfixes**
* #4359 Create composite index on segmentby columns
* #4374 Remove constified now() constraints from plan
* #4416 Handle TRUNCATE TABLE on chunks
* #4478 Synchronize chunk cache sizes
* #4486 Adding boolean column with default value doesn't work on compressed table
* #4512 Fix unaligned pointer access
* #4519 Throw better error message on incompatible row fetcher settings
* #4549 Fix dump_meta_data for windows
* #4553 Fix timescaledb_post_restore GUC handling
* #4573 Load TSL library on compressed_data_out call
* #4575 Fix use of `get_partition_hash` and `get_partition_for_key` inside an IMMUTABLE function
* #4577 Fix segfaults in compression code with corrupt data
* #4580 Handle default privileges on CAggs properly
* #4582 Fix assertion in GRANT .. ON ALL TABLES IN SCHEMA
* #4583 Fix partitioning functions
* #4589 Fix rename for distributed hypertable
* #4601 Reset compression sequence when group resets
* #4611 Fix a potential OOM when loading large data sets into a hypertable
* #4624 Fix heap buffer overflow
* #4627 Fix telemetry initialization
* #4631 Ensure TSL library is loaded on database upgrades
* #4646 Fix time_bucket_ng origin handling
* #4647 Fix the error "SubPlan found with no parent plan" that occurred if using joins in RETURNING clause.
**Thanks**
* @AlmiS for reporting error on `get_partition_hash` executed inside an IMMUTABLE function
* @Creatation for reporting an issue with renaming hypertables
* @janko for reporting an issue when adding bool column with default value to compressed hypertable
* @jayadevanm for reporting error of TRUNCATE TABLE on compressed chunk
* @michaelkitson for reporting permission errors using default privileges on Continuous Aggregates
* @mwahlhuetter for reporting error in joins in RETURNING clause
* @ninjaltd and @mrksngl for reporting a potential OOM when loading large data sets into a hypertable
* @PBudmark for reporting an issue with dump_meta_data.sql on Windows
* @ssmoss for reporting an issue with time_bucket_ng origin handling
This release is a patch release. We recommend that you upgrade at the
next available opportunity.
Among other things this release fixes several memory leaks, handling
of TOASTed values in GapFill and parameter handling in prepared statements.
**Bugfixes**
* #4517 Fix prepared statement param handling in ChunkAppend
* #4522 Fix ANALYZE on dist hypertable for a set of nodes
* #4526 Fix gapfill group comparison for TOASTed values
* #4527 Handle stats properly for range types
* #4532 Fix memory leak in function telemetry
* #4534 Use explicit memory context with hash_create
* #4538 Fix chunk creation on hypertables with non-default statistics
**Thanks**
* @3a6u9ka, @bgemmill, @hongquan, @stl-leonid-kalmaev and @victor-sudakov for reporting a memory leak
* @hleung2021 and @laocaixw for reporting an issue with parameter handling in prepared statements
This release adds major new features since the 2.6.1 release.
We deem it moderate priority for upgrading.
This release includes these noteworthy features:
* Optimize continuous aggregate query performance and storage
* The following query clauses and functions can now be used in a continuous
aggregate: FILTER, DISTINCT, ORDER BY as well as [Ordered-Set Aggregate](https://www.postgresql.org/docs/current/functions-aggregate.html#FUNCTIONS-ORDEREDSET-TABLE)
and [Hypothetical-Set Aggregate](https://www.postgresql.org/docs/current/functions-aggregate.html#FUNCTIONS-HYPOTHETICAL-TABLE)
* Optimize now() query planning time
* Improve COPY insert performance
* Improve performance of UPDATE/DELETE on PG14 by excluding chunks
This release also includes several bug fixes.
If you are upgrading from a previous version and were using compression
with a non-default collation on a segmentby-column you should recompress
those hypertables.
**Features**
* #4045 Custom origin's support in CAGGs
* #4120 Add logging for retention policy
* #4158 Allow ANALYZE command on a data node directly
* #4169 Add support for chunk exclusion on DELETE to PG14
* #4209 Add support for chunk exclusion on UPDATE to PG14
* #4269 Continuous Aggregates finals form
* #4301 Add support for bulk inserts in COPY operator
* #4311 Support non-superuser move chunk operations
* #4330 Add GUC "bgw_launcher_poll_time"
* #4340 Enable now() usage in plan-time chunk exclusion
**Bugfixes**
* #3899 Fix segfault in Continuous Aggregates
* #4225 Fix TRUNCATE error as non-owner on hypertable
* #4236 Fix potential wrong order of results for compressed hypertable with a non-default collation
* #4249 Fix option "timescaledb.create_group_indexes"
* #4251 Fix INSERT into compressed chunks with dropped columns
* #4255 Fix option "timescaledb.create_group_indexes"
* #4259 Fix logic bug in extension update script
* #4269 Fix bad Continuous Aggregate view definition reported in #4233
* #4289 Support moving compressed chunks between data nodes
* #4300 Fix refresh window cap for cagg refresh policy
* #4315 Fix memory leak in scheduler
* #4323 Remove printouts from signal handlers
* #4342 Fix move chunk cleanup logic
* #4349 Fix crashes in functions using AlterTableInternal
* #4358 Fix crash and other issues in telemetry reporter
**Thanks**
* @abrownsword for reporting a bug in the telemetry reporter and testing the fix
* @jsoref for fixing various misspellings in code, comments and documentation
* @yalon for reporting an error with ALTER TABLE RENAME on distributed hypertables
* @zhuizhuhaomeng for reporting and fixing a memory leak in our scheduler
This release is patch release. We recommend that you upgrade at the next available opportunity.
**Bugfixes**
* #3974 Fix remote EXPLAIN with parameterized queries
* #4122 Fix segfault on INSERT into distributed hypertable
* #4142 Ignore invalid relid when deleting hypertable
* #4159 Fix ADD COLUMN IF NOT EXISTS error on compressed hypertable
* #4161 Fix memory handling during scans
* #4186 Fix owner change for distributed hypertable
* #4192 Abort sessions after extension reload
* #4193 Fix relcache callback handling causing crashes
**Thanks**
* @abrownsword for reporting a crash in the telemetry reporter
* @daydayup863 for reporting issue with remote explain
This release is medium priority for upgrade. We recommend that you
upgrade at the next available opportunity.
This release adds major new features since the 2.5.2 release,
including:
Compression in continuous aggregates Experimental support for timezones
in continuous aggregates Experimental support for monthly buckets in
continuous aggregates It also includes several bug fixes. Telemetry
reports are switched to a new format, and now include more detailed
statistics on compression, distributed hypertables and indexes.
**Features**
* #3768 Allow ALTER TABLE ADD COLUMN with DEFAULT on compressed
hypertable
* #3769 Allow ALTER TABLE DROP COLUMN on compressed hypertable
* #3943 Optimize first/last
* #3945 Add support for ALTER SCHEMA on multi-node
* #3949 Add support for DROP SCHEMA on multi-node
**Bugfixes**
* #3808 Properly handle max_retries option
* #3863 Fix remote transaction heal logic
* #3869 Fix ALTER SET/DROP NULL contstraint on distributed hypertable
* #3944 Fix segfault in add_compression_policy
* #3961 Fix crash in EXPLAIN VERBOSE on distributed hypertable
* #4015 Eliminate float rounding instabilities in interpolate
* #4019 Update ts_extension_oid in transitioning state
* #4073 Fix buffer overflow in partition scheme
**Improvements**
Query planning performance is improved for hypertables with a large
number of chunks.
**Thanks**
* @fvannee for reporting a first/last memory leak
* @mmouterde for reporting an issue with floats and interpolate
This release contains bug fixes since the 2.5.1 release.
This release is high priority for upgrade. We strongly recommend that you
upgrade as soon as possible.
**Bugfixes**
* #3900 Improve custom scan node registration
* #3911 Fix role type deparsing for GRANT command
* #3918 Fix DataNodeScan plans with one-time filter
* #3921 Fix segfault on insert into internal compressed table
* #3938 Fix subtract_integer_from_now on 32-bit platforms and improve error handling
* #3939 Fix projection handling in time_bucket_gapfill
* #3948 Avoid double PGclear() in data fetchers
* #3979 Fix deparsing of index predicates
* #4015 Eliminate float rounding instabilities in interpolate
* #4020 Fix ALTER TABLE EventTrigger initialization
* #4024 Fix premature cache release call
* #4037 Fix status for dropped chunks that have catalog entries
* #4069 Fix riinfo NULL handling in ANY construct
* #4071 Fix extension installation privilege escalation
* #4073 Fix buffer overflow in partition scheme
**Thanks**
* @carlocperez for reporting crash with NULL handling in ANY construct
* @erikhh for reporting an issue with time_bucket_gapfill
* @fvannee for reporting a first/last memory leak
* @kancsuki for reporting drop column and partial index creation not working
* @mmouterde for reporting an issue with floats and interpolate
* Pedro Gallegos for reporting a possible privilege escalation during extension installation
Security: CVE-2022-24128
This release adds major new features since the 2.4.2 release.
We deem it moderate priority for upgrading.
This release includes these noteworthy features:
* Continuous Aggregates for Distributed Hypertables
* Support for PostgreSQL 14
* Experimental: Support for timezones in `time_bucket_ng()`, including
the `origin` argument
This release also includes several bug fixes.
**Features**
* #3034 Add support for PostgreSQL 14
* #3435 Add continuous aggregates for distributed hypertables
* #3505 Add support for timezones in `time_bucket_ng()`
**Bugfixes**
* #3580 Fix memory context bug executing TRUNCATE
* #3592 Allow alter column type on distributed hypertable
* #3598 Improve evaluation of stable functions such as now() on access
node
* #3618 Fix execution of refresh_caggs from user actions
* #3625 Add shared dependencies when creating chunk
* #3626 Fix memory context bug executing TRUNCATE
* #3627 Schema qualify UDTs in multi-node
* #3638 Allow owner change of a data node
* #3654 Fix index attnum mapping in reorder_chunk
* #3661 Fix SkipScan path generation with constant DISTINCT column
* #3667 Fix compress_policy for multi txn handling
* #3673 Fix distributed hypertable DROP within a procedure
* #3701 Allow anyone to use size utilities on distributed hypertables
* #3708 Fix crash in get_aggsplit
* #3709 Fix ordered append pathkey check
* #3712 Fix GRANT/REVOKE ALL IN SCHEMA handling
* #3717 Support transparent decompression on individual chunks
* #3724 Fix inserts into compressed chunks on hypertables with caggs
* #3727 Fix DirectFunctionCall crash in distributed_exec
* #3728 Fix SkipScan with varchar column
* #3733 Fix ANALYZE crash with custom statistics for custom types
* #3747 Always reset expr context in DecompressChunk
**Thanks**
* @binakot and @sebvett for reporting an issue with DISTINCT queries
* @hardikm10, @DavidPavlicek and @pafiti for reporting bugs on TRUNCATE
* @mjf for reporting an issue with ordered append and JOINs
* @phemmer for reporting the issues on multinode with aggregate queries and evaluation of now()
* @abolognino for reporting an issue with INSERTs into compressed hypertables that have cagg
* @tanglebones for reporting the ANALYZE crash with custom types on multinode
Update version numbers and add 2.4.2 to update tests.
We have to put the DROP FUNCTION back in latest-dev because
2.4.2 did not include the commit which removed the function
definitions.
This release contains bug fixes since the 2.4.1 release.
We deem it high priority to upgrade.
**Bugfixes**
* #3437 Rename on all continuous aggregate objects
* #3469 Use signal-safe functions in signal handler
* #3520 Modify compression job processing logic
* #3527 Fix time_bucket_ng behaviour with origin argument
* #3532 Fix bootstrap with regresschecks disabled
* #3574 Fix failure on job execution by background worker
* #3590 Call cleanup functions on backend exit
**Thanks**
* @jankatins for reporting a crash with background workers
* @LutzWeischerFujitsu for reporting an issue with bootstrap
This release contains bug fixes since the 2.4.0 release. We deem it
high priority to upgrade.
The release fixes continous aggregate refresh for postgres 12.8 and
13.4, a crash with ALTER TABLE commands and a crash with continuous
aggregates with HAVING clause.
**Bugfixes**
* #3430 Fix havingqual processing for continuous aggregates
* #3468 Disable tests by default if tools are not found
* #3462 Fix crash while tracking alter table commands
* #3489 Fix continuous agg bgw job failure for PG 12.8 and 13.4
* #3494 Improve error message when adding data nodes
**Thanks**
* @brianbenns for reporting a segfault with continuous aggregates
* @brianbenns for reporting a segfault with continuous aggregates
* @usego for reporting an issue with continuous aggregate refresh on PG 13.4
This release adds new experimental features since the 2.3.1 release.
The experimental features in this release are:
* APIs for chunk manipulation across data nodes in a distributed
hypertable setup. This includes the ability to add a data node and move
chunks to the new data node for cluster rebalancing.
* The `time_bucket_ng` function, a newer version of `time_bucket`. This
function supports years, months, days, hours, minutes, and seconds.
We’re committed to developing these experiments, giving the community
a chance to provide early feedback and influence the direction of
TimescaleDB’s development. We’ll travel faster with your input!
Please create your feedback as a GitHub issue (using the
experimental-schema label), describe what you found, and tell us the
steps or share the code snip to recreate it.
This release also includes several bug fixes.
PostgreSQL 11 deprecation announcement
Timescale is working hard on our next exciting features. To make that
possible, we require functionality that is available in Postgres 12 and
above. Postgres 11 is not supported with TimescaleDB 2.4.
**Experimental Features**
* #3293 Add timescaledb_experimental schema
* #3302 Add block_new_chunks and allow_new_chunks API to experimental
schema. Add chunk based refresh_continuous_aggregate.
* #3211 Introduce experimental time_bucket_ng function
* #3366 Allow use of experimental time_bucket_ng function in continuous aggregates
* #3408 Support for seconds, minutes and hours in time_bucket_ng
* #3446 Implement cleanup for chunk copy/move.
**Bugfixes**
* #3401 Fix segfault for RelOptInfo without fdw_private
* #3411 Verify compressed chunk validity for compressed path
* #3416 Fix targetlist names for continuous aggregate views
* #3434 Remove extension check from relcache invalidation callback
* #3440 Fix remote_tx_heal_data_node to work with only current database
**Thanks**
* @fvannee for reporting an issue with hypertable expansion in functions
* @amalek215 for reporting an issue with cache invalidation during pg_class vacuum full
* @hardikm10 for reporting an issue with inserting into compressed chunks
* @dberardo-com and @iancmcc for reporting an issue with extension updates after renaming columns of continuous aggregates.
Add 2.3.1 to the update tests and update the downgrade target for the
downgrade version. This commit also fixes two issues that were fixed in
the release branch:
1. Drop `_timescaledb_internal.refresh_continuous_aggregate`
2. Update the changelog to match the release branch.
**Bugfixes**
* #3279 Add some more randomness to chunk assignment
* #3288 Fix failed update with parallel workers
* #3300 Improve trigger handling on distributed hypertables
* #3304 Remove paths that reference parent relids for compressed chunks
* #3305 Fix pull_varnos miscomputation of relids set
* #3310 Generate downgrade script
* #3314 Fix heap buffer overflow in hypertable expansion
* #3317 Fix heap buffer overflow in remote connection cache.
* #3327 Make aggregate in caggs fully qualified
* #3327 Make aggregates in caggs fully qualified
* #3336 Fix pg_init_privs objsubid handling
* #3345 Fix SkipScan distinct column identification
* #3355 Fix heap buffer overflow when renaming compressed hypertable columns.
* #3367 Improve DecompressChunk qual pushdown
* #3377 Fix bad use of repalloc
**Thanks**
* @db-adrian for reporting an issue when accessing cagg view through postgres_fdw
* @fncaldas and @pgwhalen for reporting an issue accessing caggs when public is not in search_path
* @fvannee, @mglonnro and @ebreijo for reporting an issue with the upgrade script
* @fvannee for reporting a performance regression with SkipScan
During an update, it is not possible to run the downgrade scripts until
the release has been tagged, but the update scripts can be run. This
means that we need to split the previous version into two different
fields: one for running the update tests and one for running the
downgrade tests.
This release adds major new features since the 2.2.1 release. We deem
it moderate priority for upgrading.
This release adds support for inserting data into compressed chunks
and improves performance when inserting data into distributed
hypertables. Distributed hypertables now also support triggers and
compression policies.
The bug fixes in this release address issues related to the handling
of privileges on compressed hypertables, locking, and triggers with
transition tables.
**Features**
* #3116 Add distributed hypertable compression policies
* #3162 Use COPY when executing distributed INSERTs
* #3199 Add GENERATED column support on distributed hypertables
* #3210 Add trigger support on distributed hypertables
* #3230 Support for inserts into compressed chunks
**Bugfixes**
* #3213 Propagate grants to compressed hypertables
* #3229 Use correct lock mode when updating chunk
* #3243 Fix assertion failure in decompress_chunk_plan_create
* #3250 Fix constraint triggers on hypertables
* #3251 Fix segmentation fault due to incorrect call to chunk_scan_internal
* #3252 Fix blocking triggers with transition tables
**Thanks**
* @yyjdelete for reporting a crash with decompress_chunk and identifying the bug in the code
* @fabriziomello for documenting the prerequisites when compiling against PostgreSQL 13
This maintenance release contains bugfixes since the 2.2.0 release. We
deem it high priority for upgrading.
This release extends Skip Scan to multinode by enabling the pushdown
of `DISTINCT` to data nodes. It also fixes a number of bugs in the
implementation of Skip Scan, in distributed hypertables, in creation
of indexes, in compression, and in policies.
**Features**
* #3113 Pushdown "SELECT DISTINCT" in multi-node to allow use of Skip
Scan
**Bugfixes**
* #3101 Use commit date in `get_git_commit()`
* #3102 Fix `REINDEX TABLE` for distributed hypertables
* #3104 Fix use after free in `add_reorder_policy`
* #3106 Fix use after free in `chunk_api_get_chunk_stats`
* #3109 Copy recreated object permissions on update
* #3111 Fix `CMAKE_BUILD_TYPE` check
* #3112 Use `%u` to format Oid instead of `%d`
* #3118 Fix use after free in cache
* #3123 Fix crash while using `REINDEX TABLE CONCURRENTLY`
* #3135 Fix SkipScan path generation in `DISTINCT` queries
with expressions
* #3146 Fix SkipScan for IndexPaths without pathkeys
* #3147 Skip ChunkAppend if AppendPath has no children
* #3148 Make `SELECT DISTINCT` handle non-var targetlists
* #3151 Fix `fdw_relinfo_get` assertion failure on `DELETE`
* #3155 Inherit `CFLAGS` from PostgreSQL
* #3169 Fix incorrect type cast in compression policy
* #3183 Fix segfault in calculate_chunk_interval
* #3185 Fix wrong datatype in integer based retention policy
**Thanks**
* @Dead2, @dv8472 and @einsibjarni for reporting an issue with
multinode queries and views
* @hperez75 for reporting an issue with Skip Scan
* @nathanloisel for reporting an issue with compression on hypertables
with integer-based timestamps
* @xin-hedera for fixing an issue with compression on hypertables with
integer-based timestamps
This release adds major new features since the 2.1.1 release.
We deem it moderate priority for upgrading.
This release adds the Skip Scan optimization, which significantly
improves the performance of queries with DISTINCT ON. This
optimization is not yet available for queries on distributed
hypertables.
This release also adds a function to create a distributed
restore point, which allows performing a consistent restore of a
multi-node cluster from a backup.
The bug fixes in this release address issues with size and stats
functions, high memory usage in distributed inserts, slow distributed
ORDER BY queries, indexes involving INCLUDE, and single chunk query
planning.
**PostgreSQL 11 deprecation announcement**
Timescale is working hard on our next exciting features. To make that
possible, we require functionality that is unfortunately absent on
PostgreSQL 11. For this reason, we will continue supporting PostgreSQL
11 until mid-June 2021. Sooner to that time, we will announce the
specific version of TimescaleDB in which PostgreSQL 11 support will
not be included going forward.
**Major Features**
* #2843 Add distributed restore point functionality
* #3000 SkipScan to speed up SELECT DISTINCT
**Bugfixes**
* #2989 Refactor and harden size and stats functions
* #3058 Reduce memory usage for distributed inserts
* #3067 Fix extremely slow multi-node order by queries
* #3082 Fix chunk index column name mapping
* #3083 Keep Append pathkeys in ChunkAppend
**Thanks**
* @BowenGG for reporting an issue with indexes with INCLUDE
* @fvannee for reporting an issue with ChunkAppend pathkeys
* @pedrokost and @RobAtticus for reporting an issue with size
functions on empty hypertables
* @phemmer and @ryanbooz for reporting issues with slow
multi-node order by queries
* @stephane-moreau for reporting an issue with high memory usage during
single-transaction inserts on a distributed hypertable.
This maintenance release contains bugfixes since the 2.1.0 release. We
deem it high priority for upgrading.
The bug fixes in this release address issues with CREATE INDEX and
UPSERT for hypertables, custom jobs, and gapfill queries.
This release marks TimescaleDB as a trusted extension in PG13, so that
superuser privileges are not required anymore to install the extension.
**Minor features**
* #2998 Mark timescaledb as trusted extension
**Bugfixes**
* #2948 Fix off by 4 error in histogram deserialize
* #2974 Fix index creation for hypertables with dropped columns
* #2990 Fix segfault in job_config_check for cagg
* #2987 Fix crash due to txns in emit_log_hook_callback
* #3042 Commit end transaction for CREATE INDEX
* #3053 Fix gapfill/hashagg planner interaction
* #3059 Fix UPSERT on hypertables with columns with defaults
**Thanks**
* @eloyekunle and @kitwestneat for reporting an issue with UPSERT
* @jocrau for reporting an issue with index creation
* @kev009 for fixing a compilation issue
* @majozv and @pehlert for reporting an issue with time_bucket_gapfill
This release adds major new features since the 2.0.2 release.
We deem it moderate priority for upgrading.
This release adds the long-awaited support for PostgreSQL 13 to TimescaleDB.
The minimum required PostgreSQL 13 version is 13.2 due to a security vulnerability
affecting TimescaleDB functionality present in earlier versions of PostgreSQL 13.
This release also relaxes some restrictions for compressed hypertables;
namely, TimescaleDB now supports adding columns to compressed hypertables
and renaming columns of compressed hypertables.
**Major Features**
* #2779 Add support for PostgreSQL 13
**Minor features**
* #2736 Support adding columns to hypertables with compression enabled
* #2909 Support renaming columns of hypertables with compression enabled
This maintenance release contains bugfixes since the 2.0.1 release. We
deem it high priority for upgrading.
The bug fixes in this release address issues with joins, the status of
background jobs, and disabling compression. It also includes
enhancements to continuous aggregates, including improved validation
of policies and optimizations for faster refreshes when there are a
lot of invalidations.
**Minor features**
* #2926 Optimize cagg refresh for small invalidations
**Bugfixes**
* #2850 Set status for backend in background jobs
* #2883 Fix join qual propagation for nested joins
* #2884 Add GUC to control join qual propagation
* #2885 Fix compressed chunk check when disabling compression
* #2908 Fix changing column type of clustered hypertables
* #2942 Validate continuous aggregate policy
**Thanks**
* @zeeshanshabbir93 for reporting the issue with full outer joins
* @Antiarchitect for reporting the issue with slow refreshes of
* @diego-hermida for reporting the issue about being unable to disable
compression
* @mtin for reporting the issue about wrong job status
This maintenance release contains bugfixes since the 2.0.0 release. We deem it
high priority for upgrading.
In particular the fixes contained in this maintenance release address issues
in continuous aggregates, compression, JOINs with hypertables and when
upgrading from previous versions.
**Bugfixes**
* #2772 Always validate existing database and extension
* #2780 Fix config enum entries for remote data fetcher
* #2806 Add check for dropped chunk on update
* #2828 Improve cagg watermark caching
* #2842 Do not mark job as started when setting next_start field
* #2845 Fix continuous aggregate privileges during upgrade
* #2851 Fix nested loop joins that involve compressed chunks
* #2860 Fix projection in ChunkAppend nodes
* #2861 Remove compression stat update from update script
* #2865 Apply volatile function quals at decompresschunk node
* #2866 Avoid partitionwise planning of partialize_agg
* #2868 Fix corruption in gapfill plan
* #2874 Fix partitionwise agg crash due to uninitialized memory
**Thanks**
* @alex88 for reporting an issue with joined hypertables
* @brian-from-quantrocket for reporting an issue with extension update and dropped chunks
* @dhodyn for reporting an issue when joining compressed chunks
* @markatosi for reporting a segfault with partitionwise aggregates enabled
* @PhilippJust for reporting an issue with add_job and initial_start
* @sgorsh for reporting an issue when using pgAdmin on windows
* @WarriorOfWire for reporting the bug with gapfill queries not being
able to find pathkey item to sort
With this release, we are officially moving TimescaleDB 2.0 to GA,
concluding several release candidates.
TimescaleDB 2.0 adds the much-anticipated support for distributed
hypertables (multi-node TimescaleDB), as well as new features and
enhancements to core functionality to give users better clarity and
more control and flexibility over their data.
Multi-node architecture: In particular, with TimescaleDB 2.0, users
can now create distributed hypertables across multiple instances of
TimescaleDB, configured so that one instance serves as an access node
and multiple others as data nodes. All queries for a distributed
hypertable are issued to the access node, but inserted data and queries
are pushed down across data nodes for greater scale and performance.
Multi-node TimescaleDB can be self managed or, for easier operation,
launched within Timescale's fully-managed cloud services.
This release also adds:
* Support for user-defined actions, allowing users to define,
customize, and schedule automated tasks, which can be run by the
built-in jobs scheduling framework now exposed to users.
* Significant changes to continuous aggregates, which now separate the
view creation from the policy. Users can now refresh individual
regions of the continuous aggregate materialized view, or schedule
automated refreshing via policy.
* Redesigned informational views, including new (and more general)
views for information about hypertable's dimensions and chunks,
policies and user-defined actions, as well as support for multi-node
TimescaleDB.
* Moving all formerly enterprise features into our Community Edition,
and updating Timescale License, which now provides additional (more
permissive) rights to users and developers.
Some of the changes above (e.g., continuous aggregates, updated
informational views) do introduce breaking changes to APIs and are not
backwards compatible. While the update scripts in TimescaleDB 2.0 will
upgrade databases running TimescaleDB 1.x automatically, some of these
API and feature changes may require changes to clients and/or upstream
scripts that rely on the previous APIs. Before upgrading, we recommend
reviewing upgrade documentation at docs.timescale.com for more details.
**Major Features**
TimescaleDB 2.0 moves the following major features to GA:
* #1923 Add support for distributed hypertables
* #2006 Add support for user-defined actions
* #2125#2221 Improve Continuous Aggregate API
* #2084#2089#2098#2417 Redesign informational views
* #2435 Move enterprise features to community
* #2437 Update Timescale License
**Previous Release Candidates**
* #2702 Release Candidate 4 (December 2, 2020)
* #2637 Release Candidate 3 (November 12, 2020)
* #2554 Release Candidate 2 (October 20, 2020)
* #2478 Release Candidate 1 (October 1, 2020)
**Minor Features**
Since the last release candidate 4, there are several minor
improvements:
* #2746 Optimize locking for create chunk API
* #2705 Block tableoid access on distributed hypertable
* #2730 Do not allow unique index on compressed hypertables
* #2764 Bootstrap data nodes with versioned extension
**Bugfixes**
Since the last release candidate 4, there are several bugfixes:
* #2719 Support disabling compression on distributed hypertables
* #2742 Fix compression status in chunks view for distributed chunks
* #2751 Fix crash and cancel when adding data node
* #2763 Fix check constraint on hypertable metadata table
**Thanks**
Thanks to all contributors for the TimescaleDB 2.0 release:
* @airton-neto for reporting a bug in executing some queries with UNION
* @nshah14285 for reporting an issue with propagating privileges
* @kalman5 for reporting an issue with renaming constraints
* @LbaNeXte for reporting a bug in decompression for queries with
subqueries
* @semtexzv for reporting an issue with continuous aggregates on
int-based hypertables
* @mr-ns for reporting an issue with privileges for creating chunks
* @cloud-rocket for reporting an issue with setting an owner on
continuous aggregate
* @jocrau for reporting a bug during creating an index with transaction
per chunk
* @fvannee for reporting an issue with custom time types
* @ArtificialPB for reporting a bug in executing queries with
conditional ordering on compressed hypertable
* @dutchgecko for reporting an issue with continuous aggregate datatype
handling
* @lambdaq for suggesting to improve error message in continuous
aggregate creation
* @francesco11112 for reporting memory issue on COPY
* @Netskeh for reporting bug on time_bucket problem in continuous
aggregates
* @mr-ns for reporting the issue with CTEs on distributed hypertables
* @akamensky for reporting an issue with recursive cache invalidation
* @ryanbooz for reporting slow queries with real-time aggregation on
continuous aggregates
* @cevian for reporting an issue with disabling compression on
distributed hypertables
With this release, we are officially moving TimescaleDB 2.0 to GA,
concluding several release candidates.
TimescaleDB 2.0 adds the much-anticipated support for distributed
hypertables (multi-node TimescaleDB), as well as new features and
enhancements to core functionality to give users better clarity and
more control and flexibility over their data.
Multi-node architecture: In particular, with TimescaleDB 2.0, users
can now create distributed hypertables across multiple instances of
TimescaleDB, configured so that one instance serves as an access node
and multiple others as data nodes. All queries for a distributed
hypertable are issued to the access node, but inserted data and queries
are pushed down across data nodes for greater scale and performance.
Multi-node TimescaleDB can be self managed or, for easier operation,
launched within Timescale's fully-managed cloud services.
This release also adds:
* Support for user-defined actions, allowing users to define,
customize, and schedule automated tasks, which can be run by the
built-in jobs scheduling framework now exposed to users.
* Significant changes to continuous aggregates, which now separate the
view creation from the policy. Users can now refresh individual
regions of the continuous aggregate materialized view, or schedule
automated refreshing via policy.
* Redesigned informational views, including new (and more general)
views for information about hypertable's dimensions and chunks,
policies and user-defined actions, as well as support for multi-node
TimescaleDB.
* Moving all formerly enterprise features into our Community Edition,
and updating Timescale License, which now provides additional (more
permissive) rights to users and developers.
Some of the changes above (e.g., continuous aggregates, updated
informational views) do introduce breaking changes to APIs and are not
backwards compatible. While the update scripts in TimescaleDB 2.0 will
upgrade databases running TimescaleDB 1.x automatically, some of these
API and feature changes may require changes to clients and/or upstream
scripts that rely on the previous APIs. Before upgrading, we recommend
reviewing upgrade documentation at docs.timescale.com for more details.
**Major Features**
TimescaleDB 2.0 moves the following major features to GA:
* #1923 Add support for distributed hypertables
* #2006 Add support for user-defined actions
* #2125#2221 Improve Continuous Aggregate API
* #2084#2089#2098#2417 Redesign informational views
* #2435 Move enterprise features to community
* #2437 Update Timescale License
**Previous Release Candidates**
* #2702 Release Candidate 4 (December 2, 2020)
* #2637 Release Candidate 3 (November 12, 2020)
* #2554 Release Candidate 2 (October 20, 2020)
* #2478 Release Candidate 1 (October 1, 2020)
**Minor Features**
Since the last release candidate 4, it includes several minor
improvements:
* #2746 Optimize locking for create chunk API
* #2705 Block tableoid access on distributed hypertable
* #2730 Do not allow unique index on compressed hypertables
**Bugfixes**
Since the last release candidate 4, it includes several bugfixes:
* #2719 Support disabling compression on distributed hypertables
* #2742 Fix compression status in chunks view for distributed chunks
* #2751 Fix crash and cancel when adding data node
**Thanks**
Thanks to all contributors for the TimescaleDB 2.0 release:
* @airton-neto for reporting a bug in executing some queries with UNION
* @nshah14285 for reporting an issue with propagating privileges
* @kalman5 for reporting an issue with renaming constraints
* @LbaNeXte for reporting a bug in decompression for queries with
subqueries
* @semtexzv for reporting an issue with continuous aggregates on
int-based hypertables
* @mr-ns for reporting an issue with privileges for creating chunks
* @cloud-rocket for reporting an issue with setting an owner on
continuous aggregate
* @jocrau for reporting a bug during creating an index with transaction
per chunk
* @fvannee for reporting an issue with custom time types
* @ArtificialPB for reporting a bug in executing queries with
conditional ordering on compressed hypertable
* @dutchgecko for reporting an issue with continuous aggregate datatype
handling
* @lambdaq for suggesting to improve error message in continuous
aggregate creation
* @francesco11112 for reporting memory issue on COPY
* @Netskeh for reporting bug on time_bucket problem in continuous
aggregates
* @mr-ns for reporting the issue with CTEs on distributed hypertables
* @akamensky for reporting an issue with recursive cache invalidation
* @ryanbooz for reporting slow queries with real-time aggregation on
continuous aggregates
* @cevian for reporting an issue with disabling compression on
distributed hypertables
